add support for passing connection parameters as an object

[ben-page]

The built in url.parse() does not properly handle encoded variables in the username or password. Consequently, some username and/or passwords can not be based to amqplib as a URL. For reference, see: nodejs/node-v0.x-archive#25353

So, I updated connect() to support passing connection parameters as an object:

var url = {
    protocol: 'amqp', //amqp or amqps
    username: 'someone',
    password: 'secret',
    hostname: '127.0.0.1',
    port: 5672,
    vhost: 'name'
}
connect([url, [socketOptions]], function(err, conn) {...})

[squaremo]

If url is mutated, perhaps it's best to clone it. This way the user won't be surprised if the value is used elsewhere.

[ben-page]

@squaremo I agree with your comment. I updated accordingly.

[squaremo]

Thank you! Sorry I took a while to get to this.